Hostname: page-component-586b7cd67f-t7czq Total loading time: 0 Render date: 2024-11-23T19:11:42.876Z Has data issue: false hasContentIssue false
  • English
  • Français

Luminescence enhancement of Eu3+-activated La2Mo2O9 red-emitting phosphor through chemical substitution

Published online by Cambridge University Press:  12 September 2011

Xianghong He ,
Mingyun Guan ,
Chunyong Zhang ,
Tongming Shang ,
Ning Lian  and
Quanfa Zhou
Xianghong He*
Affiliation:
School of Chemistry and Environmental Engineering, Jiangsu Teachers University of Technology, Changzhou, Jiangsu 213001, China; and Jiangsu Province Key Laboratory of Precious Metal Chemistry and Technology, Changzhou, Jiangsu 213001, China
Mingyun Guan
Affiliation:
School of Chemistry and Environmental Engineering, Jiangsu Teachers University of Technology, Changzhou, Jiangsu 213001, China; and Jiangsu Province Key Laboratory of Precious Metal Chemistry and Technology, Changzhou, Jiangsu 213001, China
Chunyong Zhang
Affiliation:
School of Chemistry and Environmental Engineering, Jiangsu Teachers University of Technology, Changzhou, Jiangsu 213001, China; and Jiangsu Province Key Laboratory of Precious Metal Chemistry and Technology, Changzhou, Jiangsu 213001, China
Tongming Shang
Affiliation:
School of Chemistry and Environmental Engineering, Jiangsu Teachers University of Technology, Changzhou, Jiangsu 213001, China; and Jiangsu Province Key Laboratory of Precious Metal Chemistry and Technology, Changzhou, Jiangsu 213001, China
Ning Lian
Affiliation:
School of Chemistry and Environmental Engineering, Jiangsu Teachers University of Technology, Changzhou, Jiangsu 213001, China; and Jiangsu Province Key Laboratory of Precious Metal Chemistry and Technology, Changzhou, Jiangsu 213001, China
Quanfa Zhou
Affiliation:
School of Chemistry and Environmental Engineering, Jiangsu Teachers University of Technology, Changzhou, Jiangsu 213001, China; and Jiangsu Province Key Laboratory of Precious Metal Chemistry and Technology, Changzhou, Jiangsu 213001, China
*
a)Address all correspondence to this author. e-mail address: [email protected]
Get access

Abstract

A series of red-emitting phosphors with compositions of La2(Mo1−zSiz)2O9:0.05Eu3+ (0 ≤ z ≤ 0.10) with strong near-UV absorption were prepared by solid-state method. The structure and luminescence properties were investigated by x-ray powder diffraction, UV–vis diffuse reflectivity, and photoluminescence spectra. The luminescent properties as a function of Si4+ concentrations were systematically studied. Under excitation of a wide range near-UV (250–430 nm) or blue light, Si4+-doped series phosphors exhibit characteristic red emission of Eu3+ peaked at 615 nm. The incorporation of Si4+ into La2Mo2O9:0.05Eu3+ phosphor leads to the improvement of the excitation broad band and sharp peaks, as well as the broadening of charge transfer band. Appropriate amount of Si4+ doping can enhance the red luminescence intensity. Finally, the possible reasons for the luminescence enhancement via the corporation of Si4+ were explained.

Keywords

Chemical substitutionEuLuminescence
Type
Materials Communications
Information
Journal of Materials Research , Volume 26 , Issue 18 , 28 September 2011 , pp. 2379 - 2383
Copyright
Copyright © Materials Research Society 2011

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1.Schubert, E.F. and Kim, J.K.: Solid-state light sources getting smart. Science 308, 1274 (2005).CrossRefGoogle ScholarPubMed
2.Höppe, H.A.: Recent developments in the field of inorganic phosphors. Angew. Chem. Int. Ed. 48, 3572 (2009).CrossRefGoogle ScholarPubMed
3.Setlur, A.A.: Phosphors for LED-based solid-state lighting. Electrochem. Soc. Interface 18, 32 (2009).CrossRefGoogle Scholar
4.Phillips, J.M., Coltrin, M.E., Crawford, M.H., Fischer, A.J., Krames, M.R., Mach, R.M., Mueller, G.O., Ohno, Y., Rohwer, L.E.S., Simmons, J.A., and Tsao, J.Y.: Research challenges to ultra-efficient inorganic solid-state lighting. Laser & Photon Rev. 1, 307 (2007).CrossRefGoogle Scholar
5.Hashimoto, T., Wu, F., Speck, J.S., and Nakamura, S.: A GaN bulk crystal with improved structural quality grown by the ammonothermal method. Nat. Mater. 6, 568 (2007).CrossRefGoogle ScholarPubMed
6.Neeraj, S., Kijima, N., and Cheetham, A.K.: Novel red phosphors for solid-state lighting: The system NaM(WO4)2−x(MoO4)x:Eu3+ (M=Gd, Y, Bi). Chem. Phys. Lett. 387, 2 (2004).CrossRefGoogle Scholar
7.Neeraj, S., Kijima, N., and Cheetham, A.K.: Novel red phosphors for solid state lighting; the system BixLn1-xVO4; Eu3+/Sm3+ (Ln = Y, Gd). Solid State Commun. 131, 65 (2004).CrossRefGoogle Scholar
8.Nyman, M., Rodriguez, M.A., Shea-Rohwer, L.E., Martin, J.E., and Provencio, P.P.: Highly versatile rare earth tantalate pyrochlore nanophosphors. J. Am. Chem. Soc. 131, 11652 (2009).CrossRefGoogle ScholarPubMed
9.Pan, G., Song, H., Dai, Q., Qin, R., Bai, X., Dong, B., Fan, L., and Wang, F.: Microstructure and optical properties of Eu3+ activated YV1-xPxO4 phosphors. J. Appl. Phys. 104, 084910 (2008).CrossRefGoogle Scholar
10.Wang, F., Xue, X., and Liu, X.: Multicolor tuning of (Ln, P)-doped YVO4 nanoparticles by single-wavelength excitation. Angew. Chem. Int. Ed. 47, 906 (2008).CrossRefGoogle Scholar
11.Ci, Z., Wang, Y., Zhang, J., and Sun, Y.: Ca1-xMo1-ySiyO4:Eux3+: A novel red phosphor for white light emitting diodes. Physica B 403, 607 (2008).CrossRefGoogle Scholar
12.Xie, A., Yuan, X., Hai, S., Wang, J., Wang, F., and Li, L.: Enhancement emission intensity of CaMoO4:Eu3+, Na+ phosphor via Bi co-doping and Si substitution for application to white LEDs. J. Phys. D: Appl. Phys. 42, 105107 (2009).CrossRefGoogle Scholar
13.Lacorre, P., Goutenoire, F., Bohnke, O., Retoux, R., and Laligant, Y.: Designing fast oxide-ion conductors based on La2Mo2O9. Nature 404, 856 (2000).CrossRefGoogle ScholarPubMed
14.Corbel, G., Laligant, Y., Goutenoire, F., Suard, E., and Lacorre, P.: Effects of partial substitution of Mo6+ by Cr6+ and W6+ on the crystal structure of the fast oxide-ion conductor structural effects of W6+. Chem. Mater. 17, 4678 (2005).CrossRefGoogle Scholar
15.Kim, T. and Kang, S.: Potential red phosphor for UV-white LED device. J. Lumin. 122–123, 964 (2007).CrossRefGoogle Scholar
16.Marrero-López, D., Núñez, P., Abril, M., Lavín, V., Rodríguez-Mendoza, U.R., and Rodríguez, V.D.: Synthesis, electrical properties, and optical characterization of Eu3+-doped La2Mo2O9 nanocrystalline phosphors. J. Non-Cryst. Solids 345–346, 377 (2004).CrossRefGoogle Scholar
17.Li, X., Yang, Z., Guan, L., Liu, C., and Li, P.: Luminescent properties of Eu3+-doped La2Mo2O9 red phosphor by the flux method. J. Cryst. Growth 310, 3117 (2008).CrossRefGoogle Scholar
18.Gong, H., Shi, S., and Zhou, J.: Enhanced red luminescence of Eu3+ and R3+ -doped La2Mo2O9 phosphors under blue light excitation. Curr. Appl. Phys. 11, 551 (2011).CrossRefGoogle Scholar
19.Nazarov, M.: Luminescence mechanism of highly efficient YAG and TAG phosphors. Moldavian J. Phys. Sci. 4, 347 (2005).Google Scholar
20.Hank, W.E., Barnes, P.W., Benjamin, M.A., and Patrick, M.W.: Investigations of the electronic structure of d 0 transition metal oxides belonging to the perovskite family. J. Solid State Chem. 175, 94 (2003).Google Scholar
21.Dai, P., Zhang, X., Li, X., Wang, G., Zhao, C., and Liu, Y.: Red-emitting LiEuMo2-xSixO8 phosphors for white light-emitting diodes. J. Lumin. 131, 653 (2011).CrossRefGoogle Scholar
22.Ryu, H., Singh, B.K., Bartwal, K.S., Brik, M.G., and Kityk, I.V.: Novel efficient phosphors on the base of Mg and Zn co-doped SrTiO3:Pr3+. Acta Mater. 56, 358 (2008).CrossRefGoogle Scholar
23.Yu, Y., Chen, D., Wang, Y., Huang, P., Weng, F., and Niu, M.: Enhanced photoluminescence of Eu3+ induced by energy transfer from In2O3 nano-crystals embedded in glassy matrix. Phys. Chem. Chem. Phys. 11, 8774 (2009).CrossRefGoogle ScholarPubMed
24.Wang, W., Jiang, C., Shen, M., Fang, L., Zheng, F., Wu, X., and Shen, J.: Effect of oxygen vacancies on the red emission of SrTiO3:Pr3+ phosphor films. Appl. Phys. Lett. 94, 081904 (2009).CrossRefGoogle Scholar
25.Kubota, S., Hara, H., Yamane, H., and Shimada, M.: Luminescence property of Eu3+ in a newly compound, (Sr0.99La1.01)Zn0.99O3.495. J. Electrochem. Soc. 149, H68 (2002).CrossRefGoogle Scholar